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US ALLERGY & ASTHMA
NPI 1821758525
Allergy & Immunology in Frisco, TX

Active since December 21, 2021CLIA 45D2283318 · Waiver
11500 STATE HIGHWAY 121 STE 910, FRISCO, TX 75035(469) 200-2605(469) 200-2606 Get Directions Write a Review

NPPES record last updated: February 2, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 2, 2026, Jan 5, 2026, Apr 9, 2023 and 2 more (5 updates tracked since 2021).

About Us Allergy & Asthma NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

US ALLERGY & ASTHMA (NPI 1821758525) is a healthcare organization registered as an allergy & immunology in Frisco, Texas and active in the NPI registry since December 2021. The organization holds a CLIA Waiver certificate valid through June 5, 2027, maintains a secondary practice location in Plano, and lists Naveen Sikka, Owner, as its authorized official.

NPPES Registry Identity

NPI1821758525
Entity TypeOrganization
Primary Taxonomy207K00000X
Legal Business NameUS ALLERGY & ASTHMA
Location Address11500 STATE HIGHWAY 121 STE 910Frisco, TX 75035-9347
Mailing Address11500 State Highway 121 Ste 910Frisco, TX 75035-9347 · (469) 200-2605 · Fax (469) 200-2605
Phone(469) 200-2605
Fax(469) 200-2606
Organization SubpartNo
Authorized OfficialNaveen SikkaOwner · (469) 200-2605
Enumeration DateDecember 21, 2021
Last NPPES UpdateFebruary 2, 20265 updates tracked since enumeration
NPPES CertifiedFebruary 2, 2026
✔ NPI 1821758525 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Also ListedInternal Medicine · Allergy & ImmunologyTaxonomy 207RA0201X
11500 STATE HIGHWAY 121 STE 910, Frisco, TX 75035
Open in Google Maps ↗

Secondary Practice Location 1

Location 14708 Dexter Dr Ste 350Plano, TX 75093-5573 · Phone (469) 200-2605

Group Practice 2

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP
Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellPoint.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 45D2283318

Us Allergy & Asthma · Frisco, TX
Active · expires Jun 5, 2027
CLIA Number45D2283318
Laboratory TypePhysician Office
Certificate Effective DateJune 6, 2025
Certificate Expiration DateJune 5, 2027
Laboratory DirectorNaveen Sikka
Laboratory Phone(469) 200-2605
Laboratory LocationUs Allergy & Asthma11500 State Highway 121 Ste 910, Frisco, TX 75035
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHRISTINE SUSAN KURIEN DO
Allergy & Immunology
11500 STATE HIGHWAY 121 STE 910
FRISCO, TX 75035
Collin County (469) 200-2605
NEELU MAHAJAN PA - C
Physician Assistant
11500 STATE HIGHWAY 121 STE 910
FRISCO, TX 75035
Collin County (469) 200-2605
DIANA BAILEY HALL P.A.-C
Physician Assistant
11500 STATE HIGHWAY 121 STE 910
FRISCO, TX 75035
Collin County (469) 200-2605
DR. NAVEEN SIKKA M.D.
Allergy & Immunology
11500 STATE HIGHWAY 121 STE 910
FRISCO, TX 75035
Collin County (469) 200-2605

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Us Allergy & Asthma's NPI number?

The NPI number for Us Allergy & Asthma is 1821758525. It was assigned to this organization in the NPPES registry on December 21, 2021.

Where is Us Allergy & Asthma located?

Us Allergy & Asthma is located at 11500 State Highway 121 Ste 910, Frisco, TX 75035. The listed phone number is (469) 200-2605.

What is Us Allergy & Asthma's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Does Us Allergy & Asthma hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D2283318) is associated with this NPI, valid through June 5, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Us Allergy & Asthma accept?

Health plans from WellPoint list Us Allergy & Asthma as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Us Allergy & Asthma was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.